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Type: Journal article
Title: Polymeric material with metal-like conductivity for next generation organic electronic devices
Author: Fabretto, M.
Evans, D.
Mueller, M.
Zuber, K.
Hojati-Talemi, P.
Short, R.
Wallace, G.
Murphy, P.
Citation: Chemistry of Materials, 2012; 24(20):3998-4003
Publisher: American Chemical Society
Issue Date: 2012
ISSN: 0897-4756
Statement of
Manrico V. Fabretto, Drew R. Evans, Michael Mueller, Kamil Zuber, Pejman Hojati-Talemi, Rob D. Short, Gordon G. Wallace, and Peter J. Murphy
Abstract: The reduced pressure synthesis of poly(3,4-ethylenedioxythiophene) (PEDOT) with sheet-like morphology has been achieved with the introduction of an amphiphilic triblock copolymer into the oxidant thin film. Addition of the copolymer not only results in an oxidant thin film which remains liquid-like under reduced pressure but also induces structured growth during film formation. PEDOT films were polymerized using the vacuum vapor phase polymerization (VPP) technique, in which we show that maintaining a liquid-like state for the oxidant is essential. The resulting conductivity is equivalent to commercially available indium tin oxide (ITO) with concomitant optical transmission values. PEDOT films can be produced with a variety of thicknesses across a range of substrate materials from plastics to metals to ceramics, with sheet resistances down to 45 Ω/□ (ca. 3400 S·cm–1), and transparency in the visible spectrum of >80% at 65 nm thickness. This compares favorably to ITO and its currently touted replacements.
Keywords: vapor phase polymerization; PEDOT; high conductivity; organic electronics
Rights: © 2012 American Chemical Society
DOI: 10.1021/cm302899v
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Chemical Engineering publications

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